20620743

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{677}}^1$

素因数の和:775

約数の個数: 32

約数和(自身を含む): 32804352

約数和(自身を除く): 12183609

約数列:

[1, 3, 11, 13, 33, 39, 71, 143, 213, 429, 677, 781, 923, 2031, 2343, 2769, 7447, 8801, 10153, 22341, 26403, 30459, 48067, 96811, 144201, 290433, 528737, 624871, 1586211, 1874613, 6873581, 20620743]

約数ペア:

[(1, 20620743), (3, 6873581), (11, 1874613), (13, 1586211), (33, 624871), (39, 528737), (71, 290433), (143, 144201), (213, 96811), (429, 48067), (677, 30459), (781, 26403), (923, 22341), (2031, 10153), (2343, 8801), (2769, 7447)]